"SERVICE ENGINE SOON" light 2002 LS

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12-06-2009, 10:24 AM

rob1981

Thread Starter

Join Date: Dec 2009

Posts: 1

"SERVICE ENGINE SOON" light 2002 LS

I have a 2002 LS. SErvice engine soon light remains on. oil level is good. Coolant level is good. Any thoughts?

12-06-2009, 11:01 AM

rriddle3

BF Guru

Join Date: Dec 2006

Location: Fort Worth,Texas

Posts: 6,595

You will have to get the codes read first. If you do not have a reader then take it to AutoZone or Advance Auto and they will read the codes for free. Get back to us with the results.

12-06-2009, 12:11 PM

Sisk

BF Veteran

Join Date: May 2009

Location: Halifax, NS, Canada

Posts: 4,772

Write down the codes your truck is throwing, then consult this board: https://blazerforum.com/forum/diagnostic-trouble-codes-dtcs-49/. It has a list of just about every code you're going to see, what it means and how to fix it.